$90 Cheap Flights from San Francisco (SFO) to Chicago (ORD)

View $90 flight on Sat, May 24, 2025Opens in a new window

Popular airlines from San Francisco Intl. Airport (SFO) to Chicago O'Hare Intl. Airport (ORD)

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Find available prices by choosing your travel dates.

Cheap Flights from San Francisco to Chicago (SFO-ORD)

Prices were available within the past 7 days and start at $90 for one-way flights and $179 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, May 24 - Wed, May 28
SFO
San Francisco
ORD
Chicago
$179 Roundtrip, just found
$179
Roundtrip
just found
Select American Airlines flight, departing Sat, May 24 from San Francisco to Chicago, returning Wed, May 28, priced at $179 just found
United
Tue, Jul 1 - Fri, Jul 4
SFO
San Francisco
ORD
Chicago
$179 Roundtrip, just found
$179
Roundtrip
just found
Select United flight, departing Tue, Jul 1 from San Francisco to Chicago, returning Fri, Jul 4, priced at $179 just found
American Airlines
Sat, May 24 - Wed, May 28
SFO
San Francisco
ORD
Chicago
$182 Roundtrip, just found
$182
Roundtrip
just found
Select American Airlines flight, departing Sat, May 24 from San Francisco to Chicago, returning Wed, May 28, priced at $182 just found
Frontier Airlines
Sat, May 24 - Fri, May 30
SFO
San Francisco
ORD
Chicago
$184 Roundtrip, just found
$184
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, May 24 from San Francisco to Chicago, returning Fri, May 30, priced at $184 just found
Alaska Airlines
Tue, May 20 - Wed, May 28
SFO
San Francisco
ORD
Chicago
$188 Roundtrip, found 1 hour ago
$188
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Tue, May 20 from San Francisco to Chicago, returning Wed, May 28, priced at $188 found 1 hour ago
Frontier Airlines
Sat, May 10 - Wed, May 14
SFO
San Francisco
ORD
Chicago
$188 Roundtrip, just found
$188
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, May 10 from San Francisco to Chicago, returning Wed, May 14, priced at $188 just found
American Airlines
Sat, May 24 - Wed, May 28
SFO
San Francisco
ORD
Chicago
$189 Roundtrip, just found
$189
Roundtrip
just found
Select American Airlines flight, departing Sat, May 24 from San Francisco to Chicago, returning Wed, May 28, priced at $189 just found
American Airlines
Wed, May 14 - Fri, May 30
SFO
San Francisco
ORD
Chicago
$191 Roundtrip, found 22 hours ago
$191
Roundtrip
found 22 hours ago
Select American Airlines flight, departing Wed, May 14 from San Francisco to Chicago, returning Fri, May 30, priced at $191 found 22 hours ago
United
Tue, Jul 1 - Fri, Jul 4
SFO
San Francisco
ORD
Chicago
$191 Roundtrip, just found
$191
Roundtrip
just found
Select United flight, departing Tue, Jul 1 from San Francisco to Chicago, returning Fri, Jul 4, priced at $191 just found
Southwest Airlines
Fri, Jul 4 - Sat, Jul 12
SFO
San Francisco
ORD
Chicago
$207 Roundtrip, found 1 hour ago
$207
Roundtrip
found 1 hour ago
Select Southwest Airlines flight, departing Fri, Jul 4 from San Francisco to Chicago, returning Sat, Jul 12, priced at $207 found 1 hour ago

Frequently asked questions

How much does a flight from San Francisco Intl. Airport (SFO) to O'Hare Intl. Airport (ORD) cost?
You can score cheap return fares from San Francisco Intl. Airport (SFO) to O’Hare Intl. Airport (ORD) starting at $179. Book your seat and start your adventure. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a American Airlines flight leaving SFO on May 20 2025 and touching down at ORD. The price was last updated on April 23 2025 and has not changed since.
What is the cheapest month to fly from SFO to ORD?
The cheapest flights from SFO to ORD are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from San Francisco Intl. Airport (SFO) to O'Hare Intl. Airport (ORD)?
Avoid the layovers and fly direct to O’Hare Intl. Airport (ORD) from San Francisco Intl. Airport (SFO) with 3 carriers, including:

  • United Airlines
  • American Airlines
  • Alaska Airlines

What is the cheapest airline that flies from SFO to ORD?
Currently, the cheapest carrier operating one-way flights from SFO to ORD is American Airlines. You can book a seat on this route from $90. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from SFO on May 24 2025. Prices were last updated on April 23 2025 and have not changed since.
How many flights per day from San Francisco Intl. Airport (SFO) to O'Hare Intl. Airport (ORD)?
When flying out of San Francisco Intl. Airport (SFO), you can pick from an average of 10 daily direct flights to O’Hare Intl. Airport (ORD).
What are the most popular departure times for flights from San Francisco Intl. Airport (SFO) to O'Hare Intl. Airport (ORD)?
The 11 PM departures from SFO to ORD are typically the busiest. Prices can be higher for these popular slots. If you want to save on your fare, pick a less crowded time to fly.
What day of the week has the most flights from SFO to ORD?
Sunday has the most flights from San Francisco Intl. Airport (SFO) to O’Hare Intl. Airport (ORD). Consider taking off on this day and you’ll have a greater chance of finding a departure that fits your itinerary.
What is the earliest flight from San Francisco Intl. Airport (SFO) to O'Hare Intl. Airport (ORD)?
The earliest flight leaving San Francisco Intl. Airport (SFO) is at around 5:20AM UTC-8. Catch this flight and you’ll reach O’Hare Intl. Airport (ORD) at approximately 11:36AM UTC-6. The total time in the air is 4h 16m.
How long does it take to fly from San Francisco Intl. Airport (SFO) to O'Hare Intl. Airport (ORD)?
The average flight duration from SFO to ORD is 4 hours and 23 minutes, covering a total distance of 1,850 mi.
What airline has the least delays from SFO to ORD?
With 81% of journeys generally arriving on time, United Airlines has the best on-time performance for nonstop flights from San Francisco Intl. Airport (SFO) to O’Hare Intl. Airport (ORD). To check your flight status and receive notifications if anything changes, head to the Expedia App.
What is the best time to fly from San Francisco Intl. Airport (SFO) to O'Hare Intl. Airport (ORD)?
Choose a flight from San Francisco Intl. Airport (SFO) to O’Hare Intl. Airport (ORD) that leaves before 3 PM to reduce the risk of cancellations. Later departures are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for Chicago from San Francisco Intl. Airport (SFO)?
Catch a direct flight from San Francisco Intl. Airport (SFO) to Chicago and arrive at O’Hare Intl. Airport (ORD). An alternative entry point into this destination is Midway Intl. Airport (MDW).
Is it cheaper to buy a plane ticket from San Francisco Intl. Airport (SFO) to O'Hare Intl. Airport (ORD) last-minute?
Last-minute fares from SFO to ORD are generally more expensive. For the best rates, start looking for flights well in advance. That being said, if you’re flexible with your travel plans, you may find a cheap fare right before your journey.
Is it cheaper to book a SFO to ORD flight and hotel package?
You’ll generally save money by securing a SFO to ORD flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it’s easy to manage it all in one convenient place. Once you’ve chosen your preferred flights and accommodations, you can add extras such as tours, car rentals and activities.
Can I cancel or change the date of my flight from San Francisco Intl. Airport (SFO) to O'Hare Intl. Airport (ORD)?
Usually, it’s possible to reschedule or cancel your SFO to ORD flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Check your airline’s policies in your itinerary to see what changes are possible and if any costs are involved. You’ll also find further details on our Customer Service portal.
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